Litter pick-up machine



FIG. 1 is a right side view of a litter pick-up machine incorporating the inventive design;

FIG. 2 is a left side view of the machine incorporating the inventive design;

FIG. 3 is a top view of the machine incorporating the inventive design;

FIG. 4 is a front view of the machine incorporating the inventive design;

FIG. 5 is a rear view of the machine incorporating the inventive design;

FIG. 6 is bottom view of the machine incorporating the inventive design;

FIG. 7 is a right, frontal perspective view of the machine incorporating the inventive design; and,

FIG. 8 is a left, rear perspective view of the machine incorporating the inventive design.

In the drawing, broken, dashed or phantom lines represent elements of the machine which form no part of the inventive Design. 

The ornamental design for a litter pick-up machine, as shown and described in the drawing. 